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au·to·mo·tive adjective 1 : of or relating to automobiles, trucks, or buses

2 : SELF-PROPELLED

au·to·nom·ic nervous system noun : a part of the vertebrate nervous system that governs involuntary actions and that consists of the sympathetic nervous system and the parasympathetic nervous system

au·ton·o·mous adjective : having the right or power of self-government

— au·ton·o·mous·ly adverb

Synonyms

free, independent, self-governing, separate, sovereign—more at FREE

au·ton·o·my noun : the quality or state of being independent, free, and self-directing

Synonyms

freedom, independence, liberty, self-government, sovereignty—more at FREEDOM

au·top·sy noun, plural -sies [ORIGIN: Gk autopsia act of seeing with one's own eyes, fr. autos self + opsis sight]

: examination of a dead body usu. with dissection sufficient to determine the cause of death or extent of change produced by disease

— autopsy verb

au·tumn noun : the season between summer and winter

— au·tum·nal adjective

aux abbreviation auxiliary

1auxiliary adjective 1 : providing help

2 : functioning in a subsidiary capacity

3 : accompanying a verb form to express person, number, mood, or tense <~ verbs>

Synonyms

accessory, peripheral, supplementary; also backup, makeshift, substitute

Antonyms

chief, main, principal

2auxiliary noun, plural -ries 1 : an auxiliary person, group, or device

2 : an auxiliary verb

aux·in noun : a plant hormone that stimulates growth in length

av abbreviation 1 avenue

2 average

3 avoirdupois

AV abbreviation 1 ad valorem

2 audiovisual

3 Authorized Version

1avail verb : to produce or result in as a benefit or advantage

Synonyms

benefit, profit, serve—more at BENEFIT

2avail noun : advantage toward attainment of a goal or purpose : USE

Synonyms

account, service, use, utility—more at USE

avail·able adjective 1 : present or ready for immediate use : USABLE

2 : capable of being reached : ACCESSIBLE

— avail·abil·i·ty noun

Synonyms

[1] fit, functional, operable, practicable, serviceable, usable, useful—more at USABLE

[2] accessible, acquirable, attainable, obtainable, procurable; also purchasable

Antonyms

inaccessible, unattainable, unavailable, unobtainable

av·a·lanche noun : a mass of snow, ice, earth, or rock sliding down a mountainside

avant–garde noun [ORIGIN: F, vanguard]

: those esp. in the arts who create or apply new or experimental ideas and techniques

— avant–garde adjective

av·a·rice noun : excessive desire for wealth : GREED

Synonyms

acquisitiveness, avidity, covetousness, cupidity, greed, rapaciousness—more at GREED

av·a·ri·cious adjective : excessively acquisitive

Synonyms

acquisitive, avid, covetous, grasping, greedy, mercenary, rapacious—more at GREEDY

avast verb imperative — a nautical command to stop or cease

av·a·tar noun [ORIGIN: Skt avatāra descent]

: INCARNATION

avaunt adverb : AWAY, HENCE

avdp abbreviation avoirdupois

ave abbreviation avenue

Ave Ma·ria noun : HAIL MARY

avenge verb avenged; aveng·ing : to take vengeance for

Synonyms

requite, retaliate, revenge; also castigate, fix, get, penalize, punish, scourge

aveng·er noun : one that avenges

Synonyms

castigator, nemesis, scourge—more at NEMESIS

av·e·nue noun 1 : a way or route to a place or goal : PATH

2 : a broad street

Synonyms

[1, 2] approach, passage, path, route, way—more at PASSAGE

[2] artery, road, route, street, way—more at WAY

aver verb averred; aver·ring 1 a : to verify or prove to be true in pleading a cause

b : to allege or assert in pleading

2 : to declare positively

Synonyms

[1b, 2] affirm, allege, assert, avouch, avow, claim, contend, declare, insist, maintain, profess, protest, warrant—more at CLAIM

1average noun [ORIGIN: earlier, proportionally distributed charge for damage at sea, modif. of MF avarie damage to ship or cargo, fr. It avaria, fr. Ar awārīyah damaged merchandise]

1 : ARITHMETIC